Marco Pierre White Junior launched a foul-mouthed Twitter rant at the McCann family

The troubled reality star, 22, tweeted a shocking outburst against the couple, who are now bracing themselves for the painful milestone 10th anniversary of their daughter’s disappearance in less than seven weeks.

In what could prove to be a legally “malicious and libellous” posting, he spouted a torrent of hate which he even stupidly mis-spelt.

Mr Mitchell told The Sun Online: “Kate and Gerry will not be dignifying his foul-mouthed abuse with any other comment.”

The heavily tattooed model, 22, son of celebrity chef Marco Pierre White, has a well documented problem with both drugs and his own mum.

He posted on Thursday for his 40,000 Twitter followers to see a vile rant with expletives.

He wrote: “Kate and Gerry MacCann are f*****g guilty sick mother f*****s defiantly killed there daughter. Look at money (dollar sign) they’ve made out of it in 10 years”

Big Brother favourite Marco not only mis-spelt the family’s surname documented millions of times but also said “there” daughter instead of “their” and used a dollar symbol, for allegedly bagging cash, instead of a pounds sign.

A source close to ex-GP Kate, 49, and heart doctor Gerry, 48, form Rothley, Leics, said: “He comes across as a complete and utter idiot. His father must be appalled by his behaviour.

“But even mentioning him and like-minded people might give them some sort of spurious credibility.”